12 Matching Results

Search Results

Advanced search parameters have been applied.

in creator/contributor: "Morfin, J.G."

open access

Survey of nu/sub. mu. /e physics with emphasis on recent Fermilab results

From both an experimental and an historical point of view it is particularly appropriate to summarize the development of nu/sub ..mu../e/sup -/ physics at this time. Historically, it was ten years ago last week that the announcement of the first nu/sub ..mu../e/sup -/ event was sent from Aachen to the other members of the Gargamelle Collaboration. The event, shown in Figure 2, is of a single electron identified via its characteristic bremsstrahlung and curvature. The significance of this event … more

Date: June 1, 1983

Creator: Morfin, J.G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Micro-review of structure functions and parton distribution functions

There has recently been a great deal of discussion concerning the surprising differences in the measurements of the nucleon structure function F/sub 2/(x,Q/sup 2/), off of a hydrogen target, by the high statistics muoproduction experiments EMC and BCDMS. In this short review I will attempt to summarize the status of the experimental measurements of the structure functions and highlight any significant disagreements. At the conclusion I will comment on the status of the extraction of the parton … more

Date: January 1, 1989

Creator: Morfin, J.G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Contribution of twist-4 to the Q/sup 2/ evolution of F/sub 2/ and xF/sub 3/: an experimental review

The status of the theoretical and experimental study of higher twist contributions to the nucleon structure functions is reviewed. After noting the dangers of combining experiments with widely different <Q/sup 2/> and targets, emphasis is placed on those results coming from a single experiment. The values of ..lambda.., the twist-2 scale factor, and h/sub 4/, the coefficient of x/Q/sup 2/(1-x), are restricted by: ..lambda.. <0.44 GeV and -0.2 <h/sub 4/<0.5 GeV/sup 2/.

Date: November 1, 1982

Creator: Morfin, J.G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Using neutrinos as a probe of the strong interaction

Neutrino scattering experiments have been studying QCD for over 30 years. From the Gargamelle experiments in the early 70's, through the subsequent bubble chamber and electronic detector experiments in the 80's and 90's, neutrino scattering experiments have steadily accumulated increasing statistics and minimized their systematic errors. While the most recent study of QCD with neutrinos is from the TeVatron neutrino beam (the NuTeV experiment with results presented by Martin Tzanov at this Work… more

Date: January 1, 2005

Creator: Morfin, J.G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A high-statistics study of low-energy neutrino-nucleus scattering in the NuMI beam at Fermilab

The NuMI Facility at Fermilab is providing an extremely intense beam of neutrinos for the MINOS Neutrino Oscillation Experiment. It an ideal place for a high statistics (anti)neutrino-nucleon/nucleus scattering experiments, and the MINER{nu}A experiment, a collaboration of elementary-particle and nuclear physicists, is planning to install a fully active fine-grained solid scintillator detector in this beam. The overall goals of the experiment are to measure absolute exclusive cross-sections, st… more

Date: January 1, 2006

Creator: Morfin, J.G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Neutrino scattering physics and experiments at super beams and neutrino factories

A careful study of neutrino scattering physics is an essential part of the program to answer many open questions being addressed by several different physics communities. A deeper understanding of nuclear effects induced by neutrinos and considerably more accurate measurements of neutrino exclusive cross sections is crucial for minimizing systematics of neutrino oscillation experiments. In addition, the knowledge gained by neutrino scattering experiments is important to the Nuclear Physics and … more

Date: January 1, 2006

Creator: Morfin, J.G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Method to rapidly tune the halo spoilers of the tevatron muon beam

An active shield has been constructed which forms a sharp magnetic edge around the central core of useful muons and sweeps the envelope of halo muons (those that enter the aperture of an experiment without having passed through the momentum tagging system) radially away from beam center. Two types of halo scrapers have been employed in this shield: conventional toroidal magnets and a newly developed magnetic element called ''mupipe''. The mupipes have eight degrees of motion, so attempting to t… more

Date: September 1, 1986

Creator: Ojeda, Y.; Scott, B.; Malensek, A. & Morfin, J.G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Proposal to perform a high - statistics neutrino scattering experiment using a fine - grained detector in the NuMI Beam

The NuMI facility at Fermilab will provide an extremely intense beam of neutrinos for the MINOS neutrino-oscillation experiment. The spacious and fully-outfitted MINOS near detector hall will be the ideal venue for a high-statistics, high-resolution {nu} and {bar {nu}}-nucleon/nucleus scattering experiment. The experiment described here will measure neutrino cross-sections and probe nuclear effects essential to present and future neutrino-oscillation experiments. Moreover, with the high NuMI be… more

Date: December 1, 2003

Creator: Morfin, J. G. & McFarland, K.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

''Econodump'' design for the Fermilab Direct Neutral Lepton Facility

An extensive effort has been directed toward a major redesign of the Fermilab Direct Neutral Lepton Facility (DNLF). The goal has been a very significant cost reduction of the facility, with minimal sacrifice of physics potential. Hence the name ''Econodump'' applied to the redesign effort.

Date: August 1, 1986

Creator: Childress, S.; Brown, C.; Koizumi, G.; Malensek, A.; Morfin, J.G.; Murphy, T. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Determination of the nucleon structure using the weak neutral current

An experimental determination of the neutral current structure functions of the nucleon is obtained by measuring the ratio of the neutral current x distribution to the charged current x distribution. The analysis is based on deep inelastic neutrino nucleon scattering data gathered in a massive fine-grained neutrino detector exposed to a narrow band neutrino beam at Fermilab. 12 refs., 2 figs., 2 tabs.

Date: July 1, 1985

Creator: Bogert, D.; Burnstein, R.; Fisk, R.; Fuess, S.; Morfin, J. G.; Ohska, T. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The Impact of new neutrino DIS and Drell-Yan data on large-x parton distributions

New data sets have recently become available for neutrino and antineutrino deep inelastic scattering on nuclear targets and for inclusive dimuon production in pp and pd interactions. These data sets are sensitive to different combinations of parton distribution functions in the large-x region and, therefore, provide different constraints when incorporated into global parton distribution function fits. We compare and contrast the effects of these new data on parton distribution fits, with specia… more

Date: February 1, 2007

Creator: Owens, J. F.; Huston, J.; Keppel, C. E.; Kuhlmann, S.; Morfin, J. G.; Olness, F. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Renaissance of the ~ 1-TeV Fixed-Target Program

This document describes the physics potential of a new fixed-target program based on a {approx}1 TeV proton source. Two proton sources are potentially available in the future: the existing Tevatron at Fermilab, which can provide 800 GeV protons for fixed-target physics, and a possible upgrade to the SPS at CERN, called SPS+, which would produce 1 TeV protons on target. In this paper we use an example Tevatron fixed-target program to illustrate the high discovery potential possible in the charm … more

Date: December 2, 2011

Creator: Adams, T.; Appel, J. A.; Arms, K. E.; Balantekin, A. B.; Conrad, J. M.; Cooper, P. S. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department